"One day, gravity on Earth suddenly became a fraction of what it is now. Twenty years later, humanity has adapted to its new low-gravity reality. And to Willa Fowler, a woman born just before G-day, it's pretty awesome. Who wouldn't want to be able to soar through the air? But there are dangers too--and not just the fact that, with one wrong step, you could go flying of the face of the Earth. Some dangers lurk much closer to home than she knows. . ."--Provided by publisher.